Integrative analysis reveals an outcome-associated and targetable pattern of p53 and cell cycle deregulation in diffuse large B cell lymphoma.

Integrative analysis reveals an outcome-associated and targetable pattern of p53 and cell cycle deregulation in diffuse large B cell lymphoma.
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DOI:
10.1016/j.ccr.2012.07.014
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发表时间:
2012-09-11
期刊:
影响因子:
50.3
通讯作者:
Shipp MA
Shipp MA
中科院分区:
医学1区
文献类型:
--
作者:
Monti S;Chapuy B;Takeyama K;Rodig SJ;Hao Y;Yeda KT;Inguilizian H;Mermel C;Currie T;Dogan A;Kutok JL;Beroukhim R;Neuberg D;Habermann TM;Getz G;Kung AL;Golub TR;Shipp MA

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Diffuse large B-cell lymphoma (DLBCL) is a clinically and biologically heterogeneous disease with a high proliferation rate. By integrating copy number data with transcriptional profiles and performing pathway analysis in primary DLBCLs, we identified a comprehensive set of copy number alterations (CNAs) that decreased p53 activity and perturbed cell cycle regulation. Primary tumors either had multiple complementary alterations of p53 and cell cycle components or largely lacked these lesions. DLBCLs with p53 and cell cycle pathway CNAs had decreased abundance of p53 target transcripts and increased expression of E2F target genes and the Ki67 proliferation marker. CNAs of the CDKN2A-TP53-RB-E2F axis provide a structural basis for increased proliferation in DLBCL, predict outcome with current therapy and suggest targeted treatment approaches.
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